Hyaluronic Acid is different than other acids; this one is hydrating. Hyaluronic acid is naturally found in the skin and acts as a humectant. It's what they use in botox and fillers, plumping the skin...In laymen's terms, it acts like a sponge: it absorbs water 1000 times it's size. We have one that our chemist makes- Its lightweight gel consistency eliminates the need for other greasy and heavy emollients...and can be used as a face moisturizer.